| Doubles | |
|---|---|
| 2018 Reinert Open | |
| Champions |  Pemra Özgen  Despina Papamichail |
| Runners-up |  Olga Danilović Nina Stojanović |
| Score | 1–6, 6–2, [10–4] |
Katharina Gerlach and Julia Wachaczyk were the defending champions, but they lost to Amina Anshba and Albina Khabibulina in the quarterfinals.
Pemra Özgen and Despina Papamichail won the title, defeating Olga Danilović and Nina Stojanović in the final, 1–6, 6–2, [10–4].
Katharina Gerlach / Julia Wachaczyk (quarterfinals)
Daniela Seguel / 
Sílvia Soler Espinosa (first round, withdrew)
Valeriya Strakhova / 
Kimberley Zimmermann (first round)
Emma Laine / 
Chiara Scholl (semifinals)| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | K Gerlach J Wachaczyk | 6 | 6 | ||||||||||||||||||||||||
| L Puppendahl A Rosnowska | 0 | 1 | 1 | K Gerlach J Wachaczyk | 3 | 3 | |||||||||||||||||||||
 A Husarić  T Smitková | 3 | 64 |  A Anshba  A Khabibulina | 6 | 6 | ||||||||||||||||||||||
| A Anshba A Khabibulina | 6 | 77 | A Anshba A Khabibulina | 2 | 2 | ||||||||||||||||||||||
| 3 | V Strakhova K Zimmermann | 3 | 3 | O Danilović N Stojanović | 6 | 6 | |||||||||||||||||||||
| O Danilović N Stojanović | 6 | 6 | O Danilović N Stojanović | 6 | 7 | ||||||||||||||||||||||
| A Gabric J Niemeier | w/o | A Gabric J Niemeier | 3 | 5 | |||||||||||||||||||||||
 A Grymalska A Moratelli | O Danilović N Stojanović | 6 | 2 | [4] | |||||||||||||||||||||||
 R Hogenkamp K Muchová | w/o | P Özgen D Papamichail | 1 | 6 | [10] | ||||||||||||||||||||||
L Rüffer  A Vrljić | R Hogenkamp K Muchová | 3 | 3 | ||||||||||||||||||||||||
| A Dețiuc O Ianchuk | 3 | 3 | 4 | E Laine C Scholl | 6 | 6 | |||||||||||||||||||||
| 4 | E Laine C Scholl | 6 | 6 | 4 | E Laine C Scholl | 5 | 2 | ||||||||||||||||||||
 C Alves I Primorac | 3 | 3 | P Özgen D Papamichail | 7 | 6 | ||||||||||||||||||||||
| P Özgen D Papamichail | 6 | 6 | P Özgen D Papamichail | 6 | 6 | ||||||||||||||||||||||
J Steur  A Uzcátegui | w/o | J Steur A Uzcátegui | 2 | 2 | |||||||||||||||||||||||
| 2 | D Seguel S Soler Espinosa | ||||||||||||||||||||||||||
Olga Brózda and Anouk Tigu were the defending champions, having won the event in 2012, but both players chose not to defend their title.
The 2016 Reinert Open was a professional tennis tournament played on outdoor clay courts. It was the ninth edition of the tournament and part of the 2016 ITF Women's Circuit, offering a total of $50,000 in prize money. It took place in Versmold, Germany, on 4–10 July 2016.
The 2017 Reinert Open was a professional tennis tournament played on outdoor clay courts. It was the tenth edition of the tournament and was part of the 2017 ITF Women's Circuit. It took place in Versmold, Germany, on 10–16 July 2017.
Natela Dzalamidze and Valeriya Strakhova were the defending champions, but both players chose not to participate.
Jessica Ho and Wang Xiyu were the defending champions, but chose not to participate.
The 2019 Reinert Open was a professional tennis tournament played on outdoor clay courts. It was the twelfth edition of the tournament which was part of the 2019 ITF Women's World Tennis Tour. It took place in Versmold, Germany between 8 and 14 July 2019.
Polina Monova and Chantal Škamlová were the defending champions, but Monova chose not to participate. Škamlová played alongside Ágnes Bukta, but they lost in the first round to Katharina Gerlach and Julia Wachaczyk.
This was the first edition of the tournament.
Xu Shilin was the defending champion but chose to participate at the 2019 Shenzhen Longhua Open instead.
This was the first edition of the event.
Defending champions Tímea Babos and Kristina Mladenovic defeated Alexa Guarachi and Desirae Krawczyk in the final, 6–4, 7–5 to win the women's doubles tennis title at the 2020 French Open.
Laura Ioana Paar and Julia Wachaczyk were the defending champions but lost in the quarterfinals to Viktória Kužmová and Arantxa Rus.
Kim Clijsters was the defending champion, having won the previous edition in 2002, but chose not to participate.
Simona Halep was the defending champion, having won the previous edition in 2013, but chose not to participate.
Fiona Ferro was the defending champion, but she chose not to participate, as she was competing at the Summer Olympics.
Nina Stojanović was the defending champion but chose to compete at the 2020 Summer Olympics instead.
Elisabetta Cocciaretto was the defending champion but chose not to participate.
Lidziya Marozava and Andreea Mitu were the defending champions but Marozava chose not to participate. Mitu partnered alongside Oksana Kalashnikova but lost in the semifinals to Katharina Gerlach and Natalija Stevanović.
Mana Kawamura was the defending champion but chose not to participate.
Jenny Dürst and Weronika Falkowska won the title, defeating Michaela Bayerlová and Jacqueline Cabaj Awad in the final, 7–6(7–5), 6–1.